Stocks-Market-Sim

Code available upon request

Stock Market Sim is a Java-based application designed to help users learn and experiment with stock investments in a virtual environment. It provides tools to analyze stocks, create portfolios, and simulate investment strategies without using real money. The program follows a Model-View-Controller (MVC) architecture, ensuring a clear separation of concerns between data management, user interface, and application logic.

Features

• Recording of Stock Transactions:
  • Create and manage multiple portfolios containing various stocks.
  • Track over 100 different stock symbols over many years.
  • Stock transactions may be recorded, and the history of the portfolio may be queried to find its value, or its composition at any given time.
  • The program will automatically take into account what days the stock exchange was open, as well as any holidays, and will provide helpful suggestions to assist in correcting invalid dates.
• Stock Analysis:
  • Calculate the gain or loss of a stock over a specified period.
  • Compute the x-day moving average for a stock on a specific date.
  • Identify x-day crossovers for a stock within a specified date range.
• Rebalancing Portfolios:
  • Rebalance a portfolio based on specified target weights for stocks on a specific date.
• File saving:
  • Portfolio files may be saved and retrieved from a XML file, as well as imported from previos sessions.
• Performance Over Time:
  • Visualize the performance of a portfolio over a specified time range using a bar chart. The chart will display portfolio value at regular intervals (day, month, or year) within the specified range.
  • Scale of the chart will reflect the range of portfolio values, ensuring readability and clarity.

Details

• User Interface:
  • GUI interface (see below)
  • Text-based cli.
• Data Source:
  • Retrieves historical stock data from Alpha Vantage API.
  • Supports a wide range of stock ticker symbols and historical dates.
  • If API calls run out, there is historical data of 3 stocks (AAPL, AMZN, GOOG) that come with bundled the project and may be used locally instead.

The home page of the program

The options available for a portfolio

Helpful error messages. The 22nd is suggested since the 24th and the 23rd are weekends

The menu to import a new porfolio XML file

The graphing function for Tesla stock over one year